866454030 has 128 divisors (see below), whose sum is σ = 2568867840. Its totient is φ = 206375040.

The previous prime is 866453993. The next prime is 866454037. The reversal of 866454030 is 30454668.

866454030 is a `hidden beast` number, since 8 + 6 + 645 + 4 + 0 + 3 + 0 = 666.

It is a super-2 number, since 2×866454030² = 1501485172206481800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866454037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 104829 + ... + 112791.

It is an arithmetic number, because the mean of its divisors is an integer number (20069280).

Almost surely, 2^866454030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 866454030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1284433920).

866454030 is an abundant number, since it is smaller than the sum of its proper divisors (1702413810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

866454030 is a wasteful number, since it uses less digits than its factorization.

866454030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8023 (or 8017 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 866454030 is about 29435.5912120005. The cubic root of 866454030 is about 953.3415217916.

The spelling of 866454030 in words is "eight hundred sixty-six million, four hundred fifty-four thousand, thirty".